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41.
The interconnectedness of the ancient European, Eurasian and Chinese worlds is not doubted, but just what was exchanged and how the transmission of ideas took place is a question very much under investigation. This paper examines peculiarities of equid harnessing and draught across this vast area as a case in point to consider such issues as diffusion and independent invention, especially in relation to the emergence of single draught vehicles.  相似文献   
42.
Recent research has shown that preexisting health condition affected an individual's risk of dying during the 14th-century Black Death. However, a previous study of the effect of adult stature on risk of mortality during the epidemic failed to find a relationship between the two; this result is perhaps surprising given the well-documented inverse association between stature and mortality in human populations. We suggest that the previous study used an analytical approach that was more complex than was necessary for an assessment of the effect of adult stature on risk of mortality. This study presents a reanalysis of data on adult stature and age-at-death during the Black Death in London, 1348–1350 AD. The results indicate that short stature increased risks of mortality during the medieval epidemic, consistent with previous work that revealed a negative effect of poor health on risk of mortality during the Black Death. However, the results from a normal, non-epidemic mortality comparison sample do not show an association between stature and risks of mortality among adults under conditions of normal mortality. Fisher's exact tests, used to determine whether individuals who were growing during the Great Famine of 1315–1322 were more likely to be of short stature than those who did not endure the famine, revealed no differences between the two groups, suggesting that the famine was not a source of variation in stature among those who died during the Black Death.  相似文献   
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ABSTRACT This paper suggests a cause of low density urban development or urban sprawl that has not been given much attention in the literature. There have been a number of arguments put forward for market failures that may account for urban sprawl, including incomplete pricing of infrastructure, environmental externalities, and unpriced congestion. The problem analyzed here is that urban growth creates benefits for an entire urban area, but the costs of growth are borne by individual neighborhoods. An externality problem arises because existing residents perceive the costs associated with the new residents locating in their neighborhoods, but not the full benefits of new entrants which accrue to the city as a whole. The result is that existing residents have an incentive to block new residents to their neighborhoods, resulting in cities that are less dense than is optimal, or too spread out. The paper models several different types of urban growth, and examines the optimal and local choice outcomes under each type. In the first model, population growth is endogenous and the physical limits of the city are fixed. The second model examines the case in which population growth in the region is given, but the city boundary is allowed to vary. We show that in both cases the city will tend to be larger and less dense than is optimal. In each, we examine the sensitivity of the model to the number of neighborhoods and to the size of infrastructure and transportation costs. Finally, we examine optimal subsidies and see how they compare to current policies such as impact fees on new development.  相似文献   
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This article analyses the inter-relationships among food consumption practices, marketers' representations of sugar, and the history and political economy of sugar production. It focuses on the 'supermarket narratives'--stories regarding place and production that appear on commodity packaging--used to market sugar in the USA. It explores how competition within the sweetener industry, as shaped by the material qualities of sweeteners, has given rise to supermarket narratives that seek to differentiate sugars on the basis of ideas of place, freshness and environmental sustainability. It also examines how, at the same time, sweetener users have co-operated to maintain and increase consumption in the USA. The article begins with a discussion of historical patterns of sweetener consumption in the USA, and then looks at the genesis of the primary sugar industry lobbying organization. The case study of Florida sugar producers is used to demonstrate the historical antecedents of supermarket narratives and the contemporary geographical specificity of the political economy underlying supermarket narratives.  相似文献   
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There is at present no comprehensive interpretation of the origins of the French Revolution. Because of the fragmented state of the argument, this article explores several perspectives that have influenced research on the Revolution's origins including Alexis de Tocqueville's view of the state; research on the politics of the court at Versailles and the parlements; fiscal origins by institutional economic historians; and cultural approaches, including the analysis of the public sphere by Jürgen Habermas. It concludes that the collapse of the Old Regime was the result of a variety of converging causes, many of which had deep roots in the institutional structure of the old regime. The state itself generated institutional contradictions by both reinforcing privilege and implementing policies that undercut privilege in the quest for greater administrative efficiency. Ministerial incompetence combined with new forces, including enhanced international pressure from efficient British war finance and the growing appeal to public opinion, made reform increasingly difficult and created conditions favorable to revolution when the state went bankrupt in 1789.  相似文献   
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The butter clam, Saxidomus gigantea, is one of the most commonly recovered bivalves from archaeological shell middens on the Pacific Coast of North America. This study presents the results of the sclerochronology of modern specimens of S. gigantea, collected monthly from Pender Island (British Columbia), and additional modern specimens from the Dundas Islands (BC) and Mink and Little Takli Islands (Alaska). The methods presented can be used as a template to interpret local environmental conditions and increase the precision of seasonality estimates in shellfish using sclerochronology and oxygen isotope analysis. This method can also identify, with a high degree of accuracy, the date of shell collection to the nearest fortnightly cycle, the time of day the shell was collected and the approximate tidal elevation (i.e., approx. water depth and distance from the shoreline) from which the shell was collected.Life-history traits of S. gigantea were analyzed to understand the timing of growth line formation, the duration of the growing season, the growth rate, and the reliability of annual increments. We also examine the influence of the tidal regime and freshwater mixing in estuarine locations and how these variables can affect both incremental structures and oxygen isotope values. The results of the sclerochronological analysis show that there is a latitudinal trend in shell growth that needs to be considered when using shells for seasonality studies.Oxygen isotope analysis reveals clear annual cycles with the most positive values corresponding to the annual winter growth lines, and the most negative values corresponding to high temperatures during the summer. Intra-annual increment widths demonstrate clear seasonal oscillations with broadest increments in summer and very narrow increments or no growth during the winter months. This study provides new insights into the biology, geochemistry and seasonal growth of S. gigantea, which are crucial for paleoclimate reconstructions and interpreting seasonality patterns of past human collection.  相似文献   
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This article considers the role of visualising in the formation of the nation narrative. It foregrounds the significance of gender performance in early twentieth-century Irish cultural nationalism. Prior to the consolidation of a hegemonic narrative of state, spaces existed for the exploration of a range of possible projections of identity. This study focuses on one of those possibilities, namely a series of costume photographs where gender is literally performed. A contextual reading of these photographs is offered in order to situate them within the formation of the nation narrative. The gender of the nation is enacted through performativity, which through its repetition comes to be seen as natural. The photographs under consideration here undermine that process of naturalisation by revealing a more complex and contradictory history of the relationship between gender and nation. The omission of this more complex representation in the Irish narrative, it is argued, reveals how monopoly of narrative is integral to both hegemonic control in the visual field and how we understand the nation.  相似文献   
50.
    
This paper focuses on the much-neglected contribution of weather to research encounters. Affective atmospheres and elemental geographies are used as a platform to examine the vibrant materialities of the troposphere. The weather encapsulates human and non-human bodies, moods and actions in an enveloping space and I trace how these materialities and immaterialities are transmitted between bodies in the research setting. In a (post)phenomenological sense, certain atmospheric and meteorological events figure as lively participants. Through three research moments with farmers, I discuss how various weather conditions such as a warm balmy spring, wet muddy winter and the suffocating heat of summer enables thinking on the relational weight of atmospheres. By following participants throughout the circadian rhythms of farming over a year, seasonal fluctuations were recorded. Thus, researcher effort to comprehend how bodies become attuned and sensitive to the causal powers of the troposphere is foregrounded within share-farming experiences.  相似文献   
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